Home / 189,439.80-284,159.70-155,614.20

Finding the Fourth Proportional to 189,439.80, 284,159.70 and 155,614.20

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Solution

The fourth proportional to 189,439.80, 284,159.70 and 155,614.20 is: 233,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,439.80 : 284,159.70 = 155,614.20 : x
  2. Step 2: Convert to fraction form
    189,439.80/284,159.70 = 155,614.20/x
  3. Step 3: Cross multiply
    189,439.80x = 284,159.70 × 155,614.20
  4. Step 4: Simplify right side
    189,439.80x = 44,219,284,387.74
  5. Step 5: Solve for x
    x = 44,219,284,387.74/189,439.80
  6. Step 6: Final answer
    x = 233,421.30

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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.