Home / 487,386.18-731,089.29-150,427.05

Finding the Fourth Proportional to 487,386.18, 731,089.29 and 150,427.05

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Solution

The fourth proportional to 487,386.18, 731,089.29 and 150,427.05 is: 225,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,386.18 : 731,089.29 = 150,427.05 : x
  2. Step 2: Convert to fraction form
    487,386.18/731,089.29 = 150,427.05/x
  3. Step 3: Cross multiply
    487,386.18x = 731,089.29 × 150,427.05
  4. Step 4: Simplify right side
    487,386.18x = 109,975,605,181.30
  5. Step 5: Solve for x
    x = 109,975,605,181.30/487,386.18
  6. Step 6: Final answer
    x = 225,643.67

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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.