Home / 283,053.04-390,610.32-155,728.72

Finding the Fourth Proportional to 283,053.04, 390,610.32 and 155,728.72

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Solution

The fourth proportional to 283,053.04, 390,610.32 and 155,728.72 is: 214,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,053.04 : 390,610.32 = 155,728.72 : x
  2. Step 2: Convert to fraction form
    283,053.04/390,610.32 = 155,728.72/x
  3. Step 3: Cross multiply
    283,053.04x = 390,610.32 × 155,728.72
  4. Step 4: Simplify right side
    283,053.04x = 60,829,245,152.39
  5. Step 5: Solve for x
    x = 60,829,245,152.39/283,053.04
  6. Step 6: Final answer
    x = 214,904.05

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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.