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Finding the Fourth Proportional to 208,210.04, 287,330.51 and 112,716.51

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Solution

The fourth proportional to 208,210.04, 287,330.51 and 112,716.51 is: 155,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,210.04 : 287,330.51 = 112,716.51 : x
  2. Step 2: Convert to fraction form
    208,210.04/287,330.51 = 112,716.51/x
  3. Step 3: Cross multiply
    208,210.04x = 287,330.51 × 112,716.51
  4. Step 4: Simplify right side
    208,210.04x = 32,386,891,740.14
  5. Step 5: Solve for x
    x = 32,386,891,740.14/208,210.04
  6. Step 6: Final answer
    x = 155,549.14

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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.