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Finding the Fourth Proportional to 153,975.80, 230,931.30 and 65,232.20

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Solution

The fourth proportional to 153,975.80, 230,931.30 and 65,232.20 is: 97,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,975.80 : 230,931.30 = 65,232.20 : x
  2. Step 2: Convert to fraction form
    153,975.80/230,931.30 = 65,232.20/x
  3. Step 3: Cross multiply
    153,975.80x = 230,931.30 × 65,232.20
  4. Step 4: Simplify right side
    153,975.80x = 15,064,156,747.86
  5. Step 5: Solve for x
    x = 15,064,156,747.86/153,975.80
  6. Step 6: Final answer
    x = 97,834.57

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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.