Home / 219,215.40-328,823.10-112,927.20

Finding the Fourth Proportional to 219,215.40, 328,823.10 and 112,927.20

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Solution

The fourth proportional to 219,215.40, 328,823.10 and 112,927.20 is: 169,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,215.40 : 328,823.10 = 112,927.20 : x
  2. Step 2: Convert to fraction form
    219,215.40/328,823.10 = 112,927.20/x
  3. Step 3: Cross multiply
    219,215.40x = 328,823.10 × 112,927.20
  4. Step 4: Simplify right side
    219,215.40x = 37,133,071,978.32
  5. Step 5: Solve for x
    x = 37,133,071,978.32/219,215.40
  6. Step 6: Final answer
    x = 169,390.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.