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Finding the Fourth Proportional to 342,053.47, 513,155.94 and 117,408.88

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Solution

The fourth proportional to 342,053.47, 513,155.94 and 117,408.88 is: 176,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,053.47 : 513,155.94 = 117,408.88 : x
  2. Step 2: Convert to fraction form
    342,053.47/513,155.94 = 117,408.88/x
  3. Step 3: Cross multiply
    342,053.47x = 513,155.94 × 117,408.88
  4. Step 4: Simplify right side
    342,053.47x = 60,249,064,180.75
  5. Step 5: Solve for x
    x = 60,249,064,180.75/342,053.47
  6. Step 6: Final answer
    x = 176,139.32

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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.