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Finding the Fourth Proportional to 153,808.80, 230,464.80 and 87,050.40

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Solution

The fourth proportional to 153,808.80, 230,464.80 and 87,050.40 is: 130,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,808.80 : 230,464.80 = 87,050.40 : x
  2. Step 2: Convert to fraction form
    153,808.80/230,464.80 = 87,050.40/x
  3. Step 3: Cross multiply
    153,808.80x = 230,464.80 × 87,050.40
  4. Step 4: Simplify right side
    153,808.80x = 20,062,053,025.92
  5. Step 5: Solve for x
    x = 20,062,053,025.92/153,808.80
  6. Step 6: Final answer
    x = 130,435.01

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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.