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Finding the Fourth Proportional to 369,018.68, 509,294.64 and 207,905.64

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Solution

The fourth proportional to 369,018.68, 509,294.64 and 207,905.64 is: 286,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,018.68 : 509,294.64 = 207,905.64 : x
  2. Step 2: Convert to fraction form
    369,018.68/509,294.64 = 207,905.64/x
  3. Step 3: Cross multiply
    369,018.68x = 509,294.64 × 207,905.64
  4. Step 4: Simplify right side
    369,018.68x = 105,885,228,077.77
  5. Step 5: Solve for x
    x = 105,885,228,077.77/369,018.68
  6. Step 6: Final answer
    x = 286,937.31

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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.