Home / 518,072.40-777,152.32-144,095.36

Finding the Fourth Proportional to 518,072.40, 777,152.32 and 144,095.36

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Solution

The fourth proportional to 518,072.40, 777,152.32 and 144,095.36 is: 216,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,072.40 : 777,152.32 = 144,095.36 : x
  2. Step 2: Convert to fraction form
    518,072.40/777,152.32 = 144,095.36/x
  3. Step 3: Cross multiply
    518,072.40x = 777,152.32 × 144,095.36
  4. Step 4: Simplify right side
    518,072.40x = 111,984,043,325.24
  5. Step 5: Solve for x
    x = 111,984,043,325.24/518,072.40
  6. Step 6: Final answer
    x = 216,155.20

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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.