Home / 312,126.08-430,732.80-168,886.40

Finding the Fourth Proportional to 312,126.08, 430,732.80 and 168,886.40

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Solution

The fourth proportional to 312,126.08, 430,732.80 and 168,886.40 is: 233,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,126.08 : 430,732.80 = 168,886.40 : x
  2. Step 2: Convert to fraction form
    312,126.08/430,732.80 = 168,886.40/x
  3. Step 3: Cross multiply
    312,126.08x = 430,732.80 × 168,886.40
  4. Step 4: Simplify right side
    312,126.08x = 72,744,911,953.92
  5. Step 5: Solve for x
    x = 72,744,911,953.92/312,126.08
  6. Step 6: Final answer
    x = 233,062.59

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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.