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Finding the Fourth Proportional to 487,996.40, 732,114.60 and 168,153.20

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Solution

The fourth proportional to 487,996.40, 732,114.60 and 168,153.20 is: 252,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,996.40 : 732,114.60 = 168,153.20 : x
  2. Step 2: Convert to fraction form
    487,996.40/732,114.60 = 168,153.20/x
  3. Step 3: Cross multiply
    487,996.40x = 732,114.60 × 168,153.20
  4. Step 4: Simplify right side
    487,996.40x = 123,107,412,756.72
  5. Step 5: Solve for x
    x = 123,107,412,756.72/487,996.40
  6. Step 6: Final answer
    x = 252,271.15

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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.