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Finding the Fourth Proportional to 559,830.53, 839,746.40 and 139,106.41

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Solution

The fourth proportional to 559,830.53, 839,746.40 and 139,106.41 is: 208,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,830.53 : 839,746.40 = 139,106.41 : x
  2. Step 2: Convert to fraction form
    559,830.53/839,746.40 = 139,106.41/x
  3. Step 3: Cross multiply
    559,830.53x = 839,746.40 × 139,106.41
  4. Step 4: Simplify right side
    559,830.53x = 116,814,104,219.53
  5. Step 5: Solve for x
    x = 116,814,104,219.53/559,830.53
  6. Step 6: Final answer
    x = 208,659.76

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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.