Home / 385,445.10-577,835.19-185,490.42

Finding the Fourth Proportional to 385,445.10, 577,835.19 and 185,490.42

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Solution

The fourth proportional to 385,445.10, 577,835.19 and 185,490.42 is: 278,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,445.10 : 577,835.19 = 185,490.42 : x
  2. Step 2: Convert to fraction form
    385,445.10/577,835.19 = 185,490.42/x
  3. Step 3: Cross multiply
    385,445.10x = 577,835.19 × 185,490.42
  4. Step 4: Simplify right side
    385,445.10x = 107,182,892,083.88
  5. Step 5: Solve for x
    x = 107,182,892,083.88/385,445.10
  6. Step 6: Final answer
    x = 278,075.64

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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.