Home / 260,037.49-390,056.24-91,518.13

Finding the Fourth Proportional to 260,037.49, 390,056.24 and 91,518.13

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Solution

The fourth proportional to 260,037.49, 390,056.24 and 91,518.13 is: 137,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,037.49 : 390,056.24 = 91,518.13 : x
  2. Step 2: Convert to fraction form
    260,037.49/390,056.24 = 91,518.13/x
  3. Step 3: Cross multiply
    260,037.49x = 390,056.24 × 91,518.13
  4. Step 4: Simplify right side
    260,037.49x = 35,697,217,679.63
  5. Step 5: Solve for x
    x = 35,697,217,679.63/260,037.49
  6. Step 6: Final answer
    x = 137,277.20

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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.