Home / 282,724.86-390,163.40-153,663.28

Finding the Fourth Proportional to 282,724.86, 390,163.40 and 153,663.28

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Solution

The fourth proportional to 282,724.86, 390,163.40 and 153,663.28 is: 212,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,724.86 : 390,163.40 = 153,663.28 : x
  2. Step 2: Convert to fraction form
    282,724.86/390,163.40 = 153,663.28/x
  3. Step 3: Cross multiply
    282,724.86x = 390,163.40 × 153,663.28
  4. Step 4: Simplify right side
    282,724.86x = 59,953,786,612.46
  5. Step 5: Solve for x
    x = 59,953,786,612.46/282,724.86
  6. Step 6: Final answer
    x = 212,057.00

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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.