Home / 257,386.65-385,899.98-152,151.45

Finding the Fourth Proportional to 257,386.65, 385,899.98 and 152,151.45

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Solution

The fourth proportional to 257,386.65, 385,899.98 and 152,151.45 is: 228,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,386.65 : 385,899.98 = 152,151.45 : x
  2. Step 2: Convert to fraction form
    257,386.65/385,899.98 = 152,151.45/x
  3. Step 3: Cross multiply
    257,386.65x = 385,899.98 × 152,151.45
  4. Step 4: Simplify right side
    257,386.65x = 58,715,240,751.21
  5. Step 5: Solve for x
    x = 58,715,240,751.21/257,386.65
  6. Step 6: Final answer
    x = 228,120.77

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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.