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Finding the Fourth Proportional to 402,356.00, 555,250.19 and 221,071.93

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Solution

The fourth proportional to 402,356.00, 555,250.19 and 221,071.93 is: 305,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,356.00 : 555,250.19 = 221,071.93 : x
  2. Step 2: Convert to fraction form
    402,356.00/555,250.19 = 221,071.93/x
  3. Step 3: Cross multiply
    402,356.00x = 555,250.19 × 221,071.93
  4. Step 4: Simplify right side
    402,356.00x = 122,750,228,642.68
  5. Step 5: Solve for x
    x = 122,750,228,642.68/402,356.00
  6. Step 6: Final answer
    x = 305,078.66

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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.