Home / 438,204.02-657,378.65-153,820.80

Finding the Fourth Proportional to 438,204.02, 657,378.65 and 153,820.80

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Solution

The fourth proportional to 438,204.02, 657,378.65 and 153,820.80 is: 230,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,204.02 : 657,378.65 = 153,820.80 : x
  2. Step 2: Convert to fraction form
    438,204.02/657,378.65 = 153,820.80/x
  3. Step 3: Cross multiply
    438,204.02x = 657,378.65 × 153,820.80
  4. Step 4: Simplify right side
    438,204.02x = 101,118,510,230.47
  5. Step 5: Solve for x
    x = 101,118,510,230.47/438,204.02
  6. Step 6: Final answer
    x = 230,756.69

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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.