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Finding the Fourth Proportional to 553,688.81, 830,602.47 and 216,685.93

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Solution

The fourth proportional to 553,688.81, 830,602.47 and 216,685.93 is: 325,056.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,688.81 : 830,602.47 = 216,685.93 : x
  2. Step 2: Convert to fraction form
    553,688.81/830,602.47 = 216,685.93/x
  3. Step 3: Cross multiply
    553,688.81x = 830,602.47 × 216,685.93
  4. Step 4: Simplify right side
    553,688.81x = 179,979,867,588.82
  5. Step 5: Solve for x
    x = 179,979,867,588.82/553,688.81
  6. Step 6: Final answer
    x = 325,056.00

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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.