Home / 305,168.08-457,828.28-215,386.24

Finding the Fourth Proportional to 305,168.08, 457,828.28 and 215,386.24

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Solution

The fourth proportional to 305,168.08, 457,828.28 and 215,386.24 is: 323,133.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,168.08 : 457,828.28 = 215,386.24 : x
  2. Step 2: Convert to fraction form
    305,168.08/457,828.28 = 215,386.24/x
  3. Step 3: Cross multiply
    305,168.08x = 457,828.28 × 215,386.24
  4. Step 4: Simplify right side
    305,168.08x = 98,609,911,794.87
  5. Step 5: Solve for x
    x = 98,609,911,794.87/305,168.08
  6. Step 6: Final answer
    x = 323,133.11

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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.