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Finding the Fourth Proportional to 230,547.50, 318,417.99 and 154,964.78

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Solution

The fourth proportional to 230,547.50, 318,417.99 and 154,964.78 is: 214,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,547.50 : 318,417.99 = 154,964.78 : x
  2. Step 2: Convert to fraction form
    230,547.50/318,417.99 = 154,964.78/x
  3. Step 3: Cross multiply
    230,547.50x = 318,417.99 × 154,964.78
  4. Step 4: Simplify right side
    230,547.50x = 49,343,573,768.39
  5. Step 5: Solve for x
    x = 49,343,573,768.39/230,547.50
  6. Step 6: Final answer
    x = 214,027.80

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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.