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Finding the Fourth Proportional to 461,483.40, 692,160.30 and 145,972.20

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Solution

The fourth proportional to 461,483.40, 692,160.30 and 145,972.20 is: 218,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,483.40 : 692,160.30 = 145,972.20 : x
  2. Step 2: Convert to fraction form
    461,483.40/692,160.30 = 145,972.20/x
  3. Step 3: Cross multiply
    461,483.40x = 692,160.30 × 145,972.20
  4. Step 4: Simplify right side
    461,483.40x = 101,036,161,743.66
  5. Step 5: Solve for x
    x = 101,036,161,743.66/461,483.40
  6. Step 6: Final answer
    x = 218,937.80

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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.