Home / 280,892.08-387,631.02-153,567.64

Finding the Fourth Proportional to 280,892.08, 387,631.02 and 153,567.64

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Solution

The fourth proportional to 280,892.08, 387,631.02 and 153,567.64 is: 211,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,892.08 : 387,631.02 = 153,567.64 : x
  2. Step 2: Convert to fraction form
    280,892.08/387,631.02 = 153,567.64/x
  3. Step 3: Cross multiply
    280,892.08x = 387,631.02 × 153,567.64
  4. Step 4: Simplify right side
    280,892.08x = 59,527,580,932.19
  5. Step 5: Solve for x
    x = 59,527,580,932.19/280,892.08
  6. Step 6: Final answer
    x = 211,923.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.