Home / 385,427.90-531,827.05-242,085.84

Finding the Fourth Proportional to 385,427.90, 531,827.05 and 242,085.84

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Solution

The fourth proportional to 385,427.90, 531,827.05 and 242,085.84 is: 334,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,427.90 : 531,827.05 = 242,085.84 : x
  2. Step 2: Convert to fraction form
    385,427.90/531,827.05 = 242,085.84/x
  3. Step 3: Cross multiply
    385,427.90x = 531,827.05 × 242,085.84
  4. Step 4: Simplify right side
    385,427.90x = 128,747,798,133.97
  5. Step 5: Solve for x
    x = 128,747,798,133.97/385,427.90
  6. Step 6: Final answer
    x = 334,038.61

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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.