Home / 276,263.04-381,239.52-155,405.17

Finding the Fourth Proportional to 276,263.04, 381,239.52 and 155,405.17

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Solution

The fourth proportional to 276,263.04, 381,239.52 and 155,405.17 is: 214,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,263.04 : 381,239.52 = 155,405.17 : x
  2. Step 2: Convert to fraction form
    276,263.04/381,239.52 = 155,405.17/x
  3. Step 3: Cross multiply
    276,263.04x = 381,239.52 × 155,405.17
  4. Step 4: Simplify right side
    276,263.04x = 59,246,592,416.32
  5. Step 5: Solve for x
    x = 59,246,592,416.32/276,263.04
  6. Step 6: Final answer
    x = 214,457.18

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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.