Home / 345,117.32-476,495.69-216,107.55

Finding the Fourth Proportional to 345,117.32, 476,495.69 and 216,107.55

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Solution

The fourth proportional to 345,117.32, 476,495.69 and 216,107.55 is: 298,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,117.32 : 476,495.69 = 216,107.55 : x
  2. Step 2: Convert to fraction form
    345,117.32/476,495.69 = 216,107.55/x
  3. Step 3: Cross multiply
    345,117.32x = 476,495.69 × 216,107.55
  4. Step 4: Simplify right side
    345,117.32x = 102,974,315,070.92
  5. Step 5: Solve for x
    x = 102,974,315,070.92/345,117.32
  6. Step 6: Final answer
    x = 298,374.82

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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.