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Finding the Fourth Proportional to 223,803, 308,848.14 and 128,341.26

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Solution

The fourth proportional to 223,803, 308,848.14 and 128,341.26 is: 177,110.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,803 : 308,848.14 = 128,341.26 : x
  2. Step 2: Convert to fraction form
    223,803/308,848.14 = 128,341.26/x
  3. Step 3: Cross multiply
    223,803x = 308,848.14 × 128,341.26
  4. Step 4: Simplify right side
    223,803x = 39,637,959,436.26
  5. Step 5: Solve for x
    x = 39,637,959,436.26/223,803
  6. Step 6: Final answer
    x = 177,110.94

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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.