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Finding the Fourth Proportional to 291,859.81, 437,802.95 and 89,441.35

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Solution

The fourth proportional to 291,859.81, 437,802.95 and 89,441.35 is: 134,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,859.81 : 437,802.95 = 89,441.35 : x
  2. Step 2: Convert to fraction form
    291,859.81/437,802.95 = 89,441.35/x
  3. Step 3: Cross multiply
    291,859.81x = 437,802.95 × 89,441.35
  4. Step 4: Simplify right side
    291,859.81x = 39,157,686,881.98
  5. Step 5: Solve for x
    x = 39,157,686,881.98/291,859.81
  6. Step 6: Final answer
    x = 134,166.08

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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.