Home / 400,946.40-553,306.49-217,185.34

Finding the Fourth Proportional to 400,946.40, 553,306.49 and 217,185.34

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Solution

The fourth proportional to 400,946.40, 553,306.49 and 217,185.34 is: 299,716.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,946.40 : 553,306.49 = 217,185.34 : x
  2. Step 2: Convert to fraction form
    400,946.40/553,306.49 = 217,185.34/x
  3. Step 3: Cross multiply
    400,946.40x = 553,306.49 × 217,185.34
  4. Step 4: Simplify right side
    400,946.40x = 120,170,058,154.86
  5. Step 5: Solve for x
    x = 120,170,058,154.86/400,946.40
  6. Step 6: Final answer
    x = 299,716.02

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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.