Home / 280,895.23-387,605.55-166,178.17

Finding the Fourth Proportional to 280,895.23, 387,605.55 and 166,178.17

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Solution

The fourth proportional to 280,895.23, 387,605.55 and 166,178.17 is: 229,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,895.23 : 387,605.55 = 166,178.17 : x
  2. Step 2: Convert to fraction form
    280,895.23/387,605.55 = 166,178.17/x
  3. Step 3: Cross multiply
    280,895.23x = 387,605.55 × 166,178.17
  4. Step 4: Simplify right side
    280,895.23x = 64,411,580,980.84
  5. Step 5: Solve for x
    x = 64,411,580,980.84/280,895.23
  6. Step 6: Final answer
    x = 229,308.20

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1.5x scale

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.