Home / 282,666.80-390,079.02-161,807.50

Finding the Fourth Proportional to 282,666.80, 390,079.02 and 161,807.50

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Solution

The fourth proportional to 282,666.80, 390,079.02 and 161,807.50 is: 223,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,666.80 : 390,079.02 = 161,807.50 : x
  2. Step 2: Convert to fraction form
    282,666.80/390,079.02 = 161,807.50/x
  3. Step 3: Cross multiply
    282,666.80x = 390,079.02 × 161,807.50
  4. Step 4: Simplify right side
    282,666.80x = 63,117,711,028.65
  5. Step 5: Solve for x
    x = 63,117,711,028.65/282,666.80
  6. Step 6: Final answer
    x = 223,293.68

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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.