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Finding the Fourth Proportional to 369,615.27, 510,038.41 and 208,509.91

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Solution

The fourth proportional to 369,615.27, 510,038.41 and 208,509.91 is: 287,726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,615.27 : 510,038.41 = 208,509.91 : x
  2. Step 2: Convert to fraction form
    369,615.27/510,038.41 = 208,509.91/x
  3. Step 3: Cross multiply
    369,615.27x = 510,038.41 × 208,509.91
  4. Step 4: Simplify right side
    369,615.27x = 106,348,062,965.64
  5. Step 5: Solve for x
    x = 106,348,062,965.64/369,615.27
  6. Step 6: Final answer
    x = 287,726.38

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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.