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Finding the Fourth Proportional to 423,963.36, 585,036 and 242,678.88

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Solution

The fourth proportional to 423,963.36, 585,036 and 242,678.88 is: 334,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,963.36 : 585,036 = 242,678.88 : x
  2. Step 2: Convert to fraction form
    423,963.36/585,036 = 242,678.88/x
  3. Step 3: Cross multiply
    423,963.36x = 585,036 × 242,678.88
  4. Step 4: Simplify right side
    423,963.36x = 141,975,881,239.68
  5. Step 5: Solve for x
    x = 141,975,881,239.68/423,963.36
  6. Step 6: Final answer
    x = 334,877.71

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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.