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Finding the Fourth Proportional to 500,159.69, 690,220.40 and 273,805.19

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Solution

The fourth proportional to 500,159.69, 690,220.40 and 273,805.19 is: 377,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,159.69 : 690,220.40 = 273,805.19 : x
  2. Step 2: Convert to fraction form
    500,159.69/690,220.40 = 273,805.19/x
  3. Step 3: Cross multiply
    500,159.69x = 690,220.40 × 273,805.19
  4. Step 4: Simplify right side
    500,159.69x = 188,985,927,763.88
  5. Step 5: Solve for x
    x = 188,985,927,763.88/500,159.69
  6. Step 6: Final answer
    x = 377,851.18

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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.