Home / 307,543.06-424,399.80-180,303.40

Finding the Fourth Proportional to 307,543.06, 424,399.80 and 180,303.40

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Solution

The fourth proportional to 307,543.06, 424,399.80 and 180,303.40 is: 248,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,543.06 : 424,399.80 = 180,303.40 : x
  2. Step 2: Convert to fraction form
    307,543.06/424,399.80 = 180,303.40/x
  3. Step 3: Cross multiply
    307,543.06x = 424,399.80 × 180,303.40
  4. Step 4: Simplify right side
    307,543.06x = 76,520,726,899.32
  5. Step 5: Solve for x
    x = 76,520,726,899.32/307,543.06
  6. Step 6: Final answer
    x = 248,813.05

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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.