Home / 280,115.04-386,564.16-152,795.28

Finding the Fourth Proportional to 280,115.04, 386,564.16 and 152,795.28

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Solution

The fourth proportional to 280,115.04, 386,564.16 and 152,795.28 is: 210,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,115.04 : 386,564.16 = 152,795.28 : x
  2. Step 2: Convert to fraction form
    280,115.04/386,564.16 = 152,795.28/x
  3. Step 3: Cross multiply
    280,115.04x = 386,564.16 × 152,795.28
  4. Step 4: Simplify right side
    280,115.04x = 59,065,179,065.16
  5. Step 5: Solve for x
    x = 59,065,179,065.16/280,115.04
  6. Step 6: Final answer
    x = 210,860.43

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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.