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Finding the Fourth Proportional to 530,166.72, 731,351.16 and 315,153.84

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Solution

The fourth proportional to 530,166.72, 731,351.16 and 315,153.84 is: 434,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,166.72 : 731,351.16 = 315,153.84 : x
  2. Step 2: Convert to fraction form
    530,166.72/731,351.16 = 315,153.84/x
  3. Step 3: Cross multiply
    530,166.72x = 731,351.16 × 315,153.84
  4. Step 4: Simplify right side
    530,166.72x = 230,488,126,462.45
  5. Step 5: Solve for x
    x = 230,488,126,462.45/530,166.72
  6. Step 6: Final answer
    x = 434,746.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.