Home / 315,549.31-472,973.36-240,421.76

Finding the Fourth Proportional to 315,549.31, 472,973.36 and 240,421.76

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Solution

The fourth proportional to 315,549.31, 472,973.36 and 240,421.76 is: 360,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,549.31 : 472,973.36 = 240,421.76 : x
  2. Step 2: Convert to fraction form
    315,549.31/472,973.36 = 240,421.76/x
  3. Step 3: Cross multiply
    315,549.31x = 472,973.36 × 240,421.76
  4. Step 4: Simplify right side
    315,549.31x = 113,713,087,624.64
  5. Step 5: Solve for x
    x = 113,713,087,624.64/315,549.31
  6. Step 6: Final answer
    x = 360,365.51

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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.