Home / 247,417.02-370,795.05-128,839.74

Finding the Fourth Proportional to 247,417.02, 370,795.05 and 128,839.74

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Solution

The fourth proportional to 247,417.02, 370,795.05 and 128,839.74 is: 193,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,417.02 : 370,795.05 = 128,839.74 : x
  2. Step 2: Convert to fraction form
    247,417.02/370,795.05 = 128,839.74/x
  3. Step 3: Cross multiply
    247,417.02x = 370,795.05 × 128,839.74
  4. Step 4: Simplify right side
    247,417.02x = 47,773,137,835.29
  5. Step 5: Solve for x
    x = 47,773,137,835.29/247,417.02
  6. Step 6: Final answer
    x = 193,087.52

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1.5x scale

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.