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Finding the Fourth Proportional to 318,640.30, 477,960.45 and 97,024.30

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Solution

The fourth proportional to 318,640.30, 477,960.45 and 97,024.30 is: 145,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,640.30 : 477,960.45 = 97,024.30 : x
  2. Step 2: Convert to fraction form
    318,640.30/477,960.45 = 97,024.30/x
  3. Step 3: Cross multiply
    318,640.30x = 477,960.45 × 97,024.30
  4. Step 4: Simplify right side
    318,640.30x = 46,373,778,088.94
  5. Step 5: Solve for x
    x = 46,373,778,088.94/318,640.30
  6. Step 6: Final answer
    x = 145,536.45

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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.