Home / 287,444.30-431,218.38-118,873.07

Finding the Fourth Proportional to 287,444.30, 431,218.38 and 118,873.07

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Solution

The fourth proportional to 287,444.30, 431,218.38 and 118,873.07 is: 178,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,444.30 : 431,218.38 = 118,873.07 : x
  2. Step 2: Convert to fraction form
    287,444.30/431,218.38 = 118,873.07/x
  3. Step 3: Cross multiply
    287,444.30x = 431,218.38 × 118,873.07
  4. Step 4: Simplify right side
    287,444.30x = 51,260,252,577.78
  5. Step 5: Solve for x
    x = 51,260,252,577.78/287,444.30
  6. Step 6: Final answer
    x = 178,331.08

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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.