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Finding the Fourth Proportional to 152,001.20, 213,151.60 and 152,001.20

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Solution

The fourth proportional to 152,001.20, 213,151.60 and 152,001.20 is: 213,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,001.20 : 213,151.60 = 152,001.20 : x
  2. Step 2: Convert to fraction form
    152,001.20/213,151.60 = 152,001.20/x
  3. Step 3: Cross multiply
    152,001.20x = 213,151.60 × 152,001.20
  4. Step 4: Simplify right side
    152,001.20x = 32,399,298,981.92
  5. Step 5: Solve for x
    x = 32,399,298,981.92/152,001.20
  6. Step 6: Final answer
    x = 213,151.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.