Home / 205,011.20-307,516.80-181,510.40

Finding the Fourth Proportional to 205,011.20, 307,516.80 and 181,510.40

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Solution

The fourth proportional to 205,011.20, 307,516.80 and 181,510.40 is: 272,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,011.20 : 307,516.80 = 181,510.40 : x
  2. Step 2: Convert to fraction form
    205,011.20/307,516.80 = 181,510.40/x
  3. Step 3: Cross multiply
    205,011.20x = 307,516.80 × 181,510.40
  4. Step 4: Simplify right side
    205,011.20x = 55,817,497,374.72
  5. Step 5: Solve for x
    x = 55,817,497,374.72/205,011.20
  6. Step 6: Final answer
    x = 272,265.60

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1.5x scale

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.