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Finding the Fourth Proportional to 308,117.10, 432,608.10 and 308,117.10

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Solution

The fourth proportional to 308,117.10, 432,608.10 and 308,117.10 is: 432,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,117.10 : 432,608.10 = 308,117.10 : x
  2. Step 2: Convert to fraction form
    308,117.10/432,608.10 = 308,117.10/x
  3. Step 3: Cross multiply
    308,117.10x = 432,608.10 × 308,117.10
  4. Step 4: Simplify right side
    308,117.10x = 133,293,953,208.51
  5. Step 5: Solve for x
    x = 133,293,953,208.51/308,117.10
  6. Step 6: Final answer
    x = 432,608.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.