Home / 245,085.90-366,644.70-212,171.55

Finding the Fourth Proportional to 245,085.90, 366,644.70 and 212,171.55

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Solution

The fourth proportional to 245,085.90, 366,644.70 and 212,171.55 is: 317,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,085.90 : 366,644.70 = 212,171.55 : x
  2. Step 2: Convert to fraction form
    245,085.90/366,644.70 = 212,171.55/x
  3. Step 3: Cross multiply
    245,085.90x = 366,644.70 × 212,171.55
  4. Step 4: Simplify right side
    245,085.90x = 77,791,574,298.29
  5. Step 5: Solve for x
    x = 77,791,574,298.29/245,085.90
  6. Step 6: Final answer
    x = 317,405.34

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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.