Home / 402,484.46-555,417.27-221,196.32

Finding the Fourth Proportional to 402,484.46, 555,417.27 and 221,196.32

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Solution

The fourth proportional to 402,484.46, 555,417.27 and 221,196.32 is: 305,244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,484.46 : 555,417.27 = 221,196.32 : x
  2. Step 2: Convert to fraction form
    402,484.46/555,417.27 = 221,196.32/x
  3. Step 3: Cross multiply
    402,484.46x = 555,417.27 × 221,196.32
  4. Step 4: Simplify right side
    402,484.46x = 122,856,256,188.45
  5. Step 5: Solve for x
    x = 122,856,256,188.45/402,484.46
  6. Step 6: Final answer
    x = 305,244.72

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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.