Home / 385,554.20-578,417.70-148,875.80

Finding the Fourth Proportional to 385,554.20, 578,417.70 and 148,875.80

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Solution

The fourth proportional to 385,554.20, 578,417.70 and 148,875.80 is: 223,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,554.20 : 578,417.70 = 148,875.80 : x
  2. Step 2: Convert to fraction form
    385,554.20/578,417.70 = 148,875.80/x
  3. Step 3: Cross multiply
    385,554.20x = 578,417.70 × 148,875.80
  4. Step 4: Simplify right side
    385,554.20x = 86,112,397,821.66
  5. Step 5: Solve for x
    x = 86,112,397,821.66/385,554.20
  6. Step 6: Final answer
    x = 223,347.06

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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.