Home / 280,242.14-386,743.48-152,924.72

Finding the Fourth Proportional to 280,242.14, 386,743.48 and 152,924.72

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Solution

The fourth proportional to 280,242.14, 386,743.48 and 152,924.72 is: 211,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,242.14 : 386,743.48 = 152,924.72 : x
  2. Step 2: Convert to fraction form
    280,242.14/386,743.48 = 152,924.72/x
  3. Step 3: Cross multiply
    280,242.14x = 386,743.48 × 152,924.72
  4. Step 4: Simplify right side
    280,242.14x = 59,142,638,390.83
  5. Step 5: Solve for x
    x = 59,142,638,390.83/280,242.14
  6. Step 6: Final answer
    x = 211,041.20

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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.