Home / 369,621.32-554,347.20-103,400.60

Finding the Fourth Proportional to 369,621.32, 554,347.20 and 103,400.60

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Solution

The fourth proportional to 369,621.32, 554,347.20 and 103,400.60 is: 155,077.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,621.32 : 554,347.20 = 103,400.60 : x
  2. Step 2: Convert to fraction form
    369,621.32/554,347.20 = 103,400.60/x
  3. Step 3: Cross multiply
    369,621.32x = 554,347.20 × 103,400.60
  4. Step 4: Simplify right side
    369,621.32x = 57,319,833,088.32
  5. Step 5: Solve for x
    x = 57,319,833,088.32/369,621.32
  6. Step 6: Final answer
    x = 155,077.18

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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.