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Finding the Fourth Proportional to 312,047.58, 430,624.34 and 168,807.26

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Solution

The fourth proportional to 312,047.58, 430,624.34 and 168,807.26 is: 232,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,047.58 : 430,624.34 = 168,807.26 : x
  2. Step 2: Convert to fraction form
    312,047.58/430,624.34 = 168,807.26/x
  3. Step 3: Cross multiply
    312,047.58x = 430,624.34 × 168,807.26
  4. Step 4: Simplify right side
    312,047.58x = 72,692,514,924.71
  5. Step 5: Solve for x
    x = 72,692,514,924.71/312,047.58
  6. Step 6: Final answer
    x = 232,953.30

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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.