Home / 428,079.16-590,742-237,088.45

Finding the Fourth Proportional to 428,079.16, 590,742 and 237,088.45

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Solution

The fourth proportional to 428,079.16, 590,742 and 237,088.45 is: 327,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,079.16 : 590,742 = 237,088.45 : x
  2. Step 2: Convert to fraction form
    428,079.16/590,742 = 237,088.45/x
  3. Step 3: Cross multiply
    428,079.16x = 590,742 × 237,088.45
  4. Step 4: Simplify right side
    428,079.16x = 140,058,105,129.90
  5. Step 5: Solve for x
    x = 140,058,105,129.90/428,079.16
  6. Step 6: Final answer
    x = 327,178.05

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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.