Home / 261,931.32-361,477.08-154,505.88

Finding the Fourth Proportional to 261,931.32, 361,477.08 and 154,505.88

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Solution

The fourth proportional to 261,931.32, 361,477.08 and 154,505.88 is: 213,225.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,931.32 : 361,477.08 = 154,505.88 : x
  2. Step 2: Convert to fraction form
    261,931.32/361,477.08 = 154,505.88/x
  3. Step 3: Cross multiply
    261,931.32x = 361,477.08 × 154,505.88
  4. Step 4: Simplify right side
    261,931.32x = 55,850,334,345.23
  5. Step 5: Solve for x
    x = 55,850,334,345.23/261,931.32
  6. Step 6: Final answer
    x = 213,225.11

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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.