Home / 256,041.11-353,172.26-155,439.11

Finding the Fourth Proportional to 256,041.11, 353,172.26 and 155,439.11

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Solution

The fourth proportional to 256,041.11, 353,172.26 and 155,439.11 is: 214,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,041.11 : 353,172.26 = 155,439.11 : x
  2. Step 2: Convert to fraction form
    256,041.11/353,172.26 = 155,439.11/x
  3. Step 3: Cross multiply
    256,041.11x = 353,172.26 × 155,439.11
  4. Step 4: Simplify right side
    256,041.11x = 54,896,779,228.03
  5. Step 5: Solve for x
    x = 54,896,779,228.03/256,041.11
  6. Step 6: Final answer
    x = 214,406.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.