Home / 287,904.32-397,133.76-185,769.92

Finding the Fourth Proportional to 287,904.32, 397,133.76 and 185,769.92

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Solution

The fourth proportional to 287,904.32, 397,133.76 and 185,769.92 is: 256,250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,904.32 : 397,133.76 = 185,769.92 : x
  2. Step 2: Convert to fraction form
    287,904.32/397,133.76 = 185,769.92/x
  3. Step 3: Cross multiply
    287,904.32x = 397,133.76 × 185,769.92
  4. Step 4: Simplify right side
    287,904.32x = 73,775,506,824.50
  5. Step 5: Solve for x
    x = 73,775,506,824.50/287,904.32
  6. Step 6: Final answer
    x = 256,250.09

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1.5x scale

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.