Home / 314,905.50-472,358.59-78,248.18

Finding the Fourth Proportional to 314,905.50, 472,358.59 and 78,248.18

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Solution

The fourth proportional to 314,905.50, 472,358.59 and 78,248.18 is: 117,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,905.50 : 472,358.59 = 78,248.18 : x
  2. Step 2: Convert to fraction form
    314,905.50/472,358.59 = 78,248.18/x
  3. Step 3: Cross multiply
    314,905.50x = 472,358.59 × 78,248.18
  4. Step 4: Simplify right side
    314,905.50x = 36,961,199,974.87
  5. Step 5: Solve for x
    x = 36,961,199,974.87/314,905.50
  6. Step 6: Final answer
    x = 117,372.35

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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.