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Finding the Fourth Proportional to 292,520, 438,780.02 and 70,904

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Solution

The fourth proportional to 292,520, 438,780.02 and 70,904 is: 106,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,520 : 438,780.02 = 70,904 : x
  2. Step 2: Convert to fraction form
    292,520/438,780.02 = 70,904/x
  3. Step 3: Cross multiply
    292,520x = 438,780.02 × 70,904
  4. Step 4: Simplify right side
    292,520x = 31,111,258,538.08
  5. Step 5: Solve for x
    x = 31,111,258,538.08/292,520
  6. Step 6: Final answer
    x = 106,356.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.