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Finding the Fourth Proportional to 318,630.16, 477,933.72 and 97,008.40

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Solution

The fourth proportional to 318,630.16, 477,933.72 and 97,008.40 is: 145,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,630.16 : 477,933.72 = 97,008.40 : x
  2. Step 2: Convert to fraction form
    318,630.16/477,933.72 = 97,008.40/x
  3. Step 3: Cross multiply
    318,630.16x = 477,933.72 × 97,008.40
  4. Step 4: Simplify right side
    318,630.16x = 46,363,585,483.25
  5. Step 5: Solve for x
    x = 46,363,585,483.25/318,630.16
  6. Step 6: Final answer
    x = 145,509.09

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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.