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Finding the Fourth Proportional to 320,024.48, 480,034.98 and 130,484.11

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Solution

The fourth proportional to 320,024.48, 480,034.98 and 130,484.11 is: 195,725.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,024.48 : 480,034.98 = 130,484.11 : x
  2. Step 2: Convert to fraction form
    320,024.48/480,034.98 = 130,484.11/x
  3. Step 3: Cross multiply
    320,024.48x = 480,034.98 × 130,484.11
  4. Step 4: Simplify right side
    320,024.48x = 62,636,935,934.08
  5. Step 5: Solve for x
    x = 62,636,935,934.08/320,024.48
  6. Step 6: Final answer
    x = 195,725.45

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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.