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Finding the Fourth Proportional to 371,208.53, 512,263.65 and 207,866.51

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Solution

The fourth proportional to 371,208.53, 512,263.65 and 207,866.51 is: 286,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,208.53 : 512,263.65 = 207,866.51 : x
  2. Step 2: Convert to fraction form
    371,208.53/512,263.65 = 207,866.51/x
  3. Step 3: Cross multiply
    371,208.53x = 512,263.65 × 207,866.51
  4. Step 4: Simplify right side
    371,208.53x = 106,482,454,564.04
  5. Step 5: Solve for x
    x = 106,482,454,564.04/371,208.53
  6. Step 6: Final answer
    x = 286,853.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.