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Finding the Fourth Proportional to 318,646.25, 477,969.38 and 97,030.25

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Solution

The fourth proportional to 318,646.25, 477,969.38 and 97,030.25 is: 145,545.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,646.25 : 477,969.38 = 97,030.25 : x
  2. Step 2: Convert to fraction form
    318,646.25/477,969.38 = 97,030.25/x
  3. Step 3: Cross multiply
    318,646.25x = 477,969.38 × 97,030.25
  4. Step 4: Simplify right side
    318,646.25x = 46,377,487,948.59
  5. Step 5: Solve for x
    x = 46,377,487,948.59/318,646.25
  6. Step 6: Final answer
    x = 145,545.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.