Home / 490,031.28-734,580.36-157,374

Finding the Fourth Proportional to 490,031.28, 734,580.36 and 157,374

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Solution

The fourth proportional to 490,031.28, 734,580.36 and 157,374 is: 235,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,031.28 : 734,580.36 = 157,374 : x
  2. Step 2: Convert to fraction form
    490,031.28/734,580.36 = 157,374/x
  3. Step 3: Cross multiply
    490,031.28x = 734,580.36 × 157,374
  4. Step 4: Simplify right side
    490,031.28x = 115,603,849,574.64
  5. Step 5: Solve for x
    x = 115,603,849,574.64/490,031.28
  6. Step 6: Final answer
    x = 235,911.16

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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.