Home / 279,710.19-385,999.34-152,385.48

Finding the Fourth Proportional to 279,710.19, 385,999.34 and 152,385.48

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Solution

The fourth proportional to 279,710.19, 385,999.34 and 152,385.48 is: 210,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,710.19 : 385,999.34 = 152,385.48 : x
  2. Step 2: Convert to fraction form
    279,710.19/385,999.34 = 152,385.48/x
  3. Step 3: Cross multiply
    279,710.19x = 385,999.34 × 152,385.48
  4. Step 4: Simplify right side
    279,710.19x = 58,820,693,943.66
  5. Step 5: Solve for x
    x = 58,820,693,943.66/279,710.19
  6. Step 6: Final answer
    x = 210,291.57

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1.5x scale

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.