Home / 428,976.30-592,058.16-238,051.20

Finding the Fourth Proportional to 428,976.30, 592,058.16 and 238,051.20

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Solution

The fourth proportional to 428,976.30, 592,058.16 and 238,051.20 is: 328,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,976.30 : 592,058.16 = 238,051.20 : x
  2. Step 2: Convert to fraction form
    428,976.30/592,058.16 = 238,051.20/x
  3. Step 3: Cross multiply
    428,976.30x = 592,058.16 × 238,051.20
  4. Step 4: Simplify right side
    428,976.30x = 140,940,155,457.79
  5. Step 5: Solve for x
    x = 140,940,155,457.79/428,976.30
  6. Step 6: Final answer
    x = 328,549.98

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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.