Home / 226,439.24-312,461.34-130,931.48

Finding the Fourth Proportional to 226,439.24, 312,461.34 and 130,931.48

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Solution

The fourth proportional to 226,439.24, 312,461.34 and 130,931.48 is: 180,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,439.24 : 312,461.34 = 130,931.48 : x
  2. Step 2: Convert to fraction form
    226,439.24/312,461.34 = 130,931.48/x
  3. Step 3: Cross multiply
    226,439.24x = 312,461.34 × 130,931.48
  4. Step 4: Simplify right side
    226,439.24x = 40,911,025,688.98
  5. Step 5: Solve for x
    x = 40,911,025,688.98/226,439.24
  6. Step 6: Final answer
    x = 180,671.10

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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.