Home / 371,036.23-512,030.16-209,887.84

Finding the Fourth Proportional to 371,036.23, 512,030.16 and 209,887.84

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Solution

The fourth proportional to 371,036.23, 512,030.16 and 209,887.84 is: 289,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,036.23 : 512,030.16 = 209,887.84 : x
  2. Step 2: Convert to fraction form
    371,036.23/512,030.16 = 209,887.84/x
  3. Step 3: Cross multiply
    371,036.23x = 512,030.16 × 209,887.84
  4. Step 4: Simplify right side
    371,036.23x = 107,468,904,937.29
  5. Step 5: Solve for x
    x = 107,468,904,937.29/371,036.23
  6. Step 6: Final answer
    x = 289,645.31

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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.