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Finding the Fourth Proportional to 553,908.17, 830,529.45 and 216,547.01

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Solution

The fourth proportional to 553,908.17, 830,529.45 and 216,547.01 is: 324,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,908.17 : 830,529.45 = 216,547.01 : x
  2. Step 2: Convert to fraction form
    553,908.17/830,529.45 = 216,547.01/x
  3. Step 3: Cross multiply
    553,908.17x = 830,529.45 × 216,547.01
  4. Step 4: Simplify right side
    553,908.17x = 179,848,672,002.82
  5. Step 5: Solve for x
    x = 179,848,672,002.82/553,908.17
  6. Step 6: Final answer
    x = 324,690.41

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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.