Home / 347,259.40-520,946.70-136,904.20

Finding the Fourth Proportional to 347,259.40, 520,946.70 and 136,904.20

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Solution

The fourth proportional to 347,259.40, 520,946.70 and 136,904.20 is: 205,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,259.40 : 520,946.70 = 136,904.20 : x
  2. Step 2: Convert to fraction form
    347,259.40/520,946.70 = 136,904.20/x
  3. Step 3: Cross multiply
    347,259.40x = 520,946.70 × 136,904.20
  4. Step 4: Simplify right side
    347,259.40x = 71,319,791,206.14
  5. Step 5: Solve for x
    x = 71,319,791,206.14/347,259.40
  6. Step 6: Final answer
    x = 205,379.01

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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.