Home / 260,318.04-390,336.74-140,439.26

Finding the Fourth Proportional to 260,318.04, 390,336.74 and 140,439.26

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Solution

The fourth proportional to 260,318.04, 390,336.74 and 140,439.26 is: 210,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,318.04 : 390,336.74 = 140,439.26 : x
  2. Step 2: Convert to fraction form
    260,318.04/390,336.74 = 140,439.26/x
  3. Step 3: Cross multiply
    260,318.04x = 390,336.74 × 140,439.26
  4. Step 4: Simplify right side
    260,318.04x = 54,818,602,916.41
  5. Step 5: Solve for x
    x = 54,818,602,916.41/260,318.04
  6. Step 6: Final answer
    x = 210,583.19

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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.