Home / 312,196.16-430,830.70-168,956.21

Finding the Fourth Proportional to 312,196.16, 430,830.70 and 168,956.21

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Solution

The fourth proportional to 312,196.16, 430,830.70 and 168,956.21 is: 233,159.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,196.16 : 430,830.70 = 168,956.21 : x
  2. Step 2: Convert to fraction form
    312,196.16/430,830.70 = 168,956.21/x
  3. Step 3: Cross multiply
    312,196.16x = 430,830.70 × 168,956.21
  4. Step 4: Simplify right side
    312,196.16x = 72,791,519,224.71
  5. Step 5: Solve for x
    x = 72,791,519,224.71/312,196.16
  6. Step 6: Final answer
    x = 233,159.56

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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.