Home / 438,265.73-657,436.08-153,931.53

Finding the Fourth Proportional to 438,265.73, 657,436.08 and 153,931.53

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Solution

The fourth proportional to 438,265.73, 657,436.08 and 153,931.53 is: 230,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,265.73 : 657,436.08 = 153,931.53 : x
  2. Step 2: Convert to fraction form
    438,265.73/657,436.08 = 153,931.53/x
  3. Step 3: Cross multiply
    438,265.73x = 657,436.08 × 153,931.53
  4. Step 4: Simplify right side
    438,265.73x = 101,200,137,614.76
  5. Step 5: Solve for x
    x = 101,200,137,614.76/438,265.73
  6. Step 6: Final answer
    x = 230,910.45

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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.