Home / 437,939.18-657,206.85-157,484.78

Finding the Fourth Proportional to 437,939.18, 657,206.85 and 157,484.78

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Solution

The fourth proportional to 437,939.18, 657,206.85 and 157,484.78 is: 236,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,939.18 : 657,206.85 = 157,484.78 : x
  2. Step 2: Convert to fraction form
    437,939.18/657,206.85 = 157,484.78/x
  3. Step 3: Cross multiply
    437,939.18x = 657,206.85 × 157,484.78
  4. Step 4: Simplify right side
    437,939.18x = 103,500,076,186.74
  5. Step 5: Solve for x
    x = 103,500,076,186.74/437,939.18
  6. Step 6: Final answer
    x = 236,334.36

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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.