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Finding the Fourth Proportional to 366,064.20, 549,096.30 and 129,430.80

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Solution

The fourth proportional to 366,064.20, 549,096.30 and 129,430.80 is: 194,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,064.20 : 549,096.30 = 129,430.80 : x
  2. Step 2: Convert to fraction form
    366,064.20/549,096.30 = 129,430.80/x
  3. Step 3: Cross multiply
    366,064.20x = 549,096.30 × 129,430.80
  4. Step 4: Simplify right side
    366,064.20x = 71,069,973,386.04
  5. Step 5: Solve for x
    x = 71,069,973,386.04/366,064.20
  6. Step 6: Final answer
    x = 194,146.20

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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.