Home / 400,156.86-552,290.32-257,095.74

Finding the Fourth Proportional to 400,156.86, 552,290.32 and 257,095.74

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Solution

The fourth proportional to 400,156.86, 552,290.32 and 257,095.74 is: 354,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156.86 : 552,290.32 = 257,095.74 : x
  2. Step 2: Convert to fraction form
    400,156.86/552,290.32 = 257,095.74/x
  3. Step 3: Cross multiply
    400,156.86x = 552,290.32 × 257,095.74
  4. Step 4: Simplify right side
    400,156.86x = 141,991,488,515.24
  5. Step 5: Solve for x
    x = 141,991,488,515.24/400,156.86
  6. Step 6: Final answer
    x = 354,839.57

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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.