Home / 280,242.68-386,746.52-159,405.24

Finding the Fourth Proportional to 280,242.68, 386,746.52 and 159,405.24

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Solution

The fourth proportional to 280,242.68, 386,746.52 and 159,405.24 is: 219,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,242.68 : 386,746.52 = 159,405.24 : x
  2. Step 2: Convert to fraction form
    280,242.68/386,746.52 = 159,405.24/x
  3. Step 3: Cross multiply
    280,242.68x = 386,746.52 × 159,405.24
  4. Step 4: Simplify right side
    280,242.68x = 61,649,421,839.76
  5. Step 5: Solve for x
    x = 61,649,421,839.76/280,242.68
  6. Step 6: Final answer
    x = 219,985.84

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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.