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Finding the Fourth Proportional to 538,946.40, 808,491.60 and 183,871.20

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Solution

The fourth proportional to 538,946.40, 808,491.60 and 183,871.20 is: 275,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,946.40 : 808,491.60 = 183,871.20 : x
  2. Step 2: Convert to fraction form
    538,946.40/808,491.60 = 183,871.20/x
  3. Step 3: Cross multiply
    538,946.40x = 808,491.60 × 183,871.20
  4. Step 4: Simplify right side
    538,946.40x = 148,658,320,681.92
  5. Step 5: Solve for x
    x = 148,658,320,681.92/538,946.40
  6. Step 6: Final answer
    x = 275,831.36

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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.