Home / 227,056.32-312,953.76-155,312.64

Finding the Fourth Proportional to 227,056.32, 312,953.76 and 155,312.64

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Solution

The fourth proportional to 227,056.32, 312,953.76 and 155,312.64 is: 214,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,056.32 : 312,953.76 = 155,312.64 : x
  2. Step 2: Convert to fraction form
    227,056.32/312,953.76 = 155,312.64/x
  3. Step 3: Cross multiply
    227,056.32x = 312,953.76 × 155,312.64
  4. Step 4: Simplify right side
    227,056.32x = 48,605,674,663.53
  5. Step 5: Solve for x
    x = 48,605,674,663.53/227,056.32
  6. Step 6: Final answer
    x = 214,068.80

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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.