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Finding the Fourth Proportional to 493,369.51, 740,349.50 and 212,886.76

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Solution

The fourth proportional to 493,369.51, 740,349.50 and 212,886.76 is: 319,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,369.51 : 740,349.50 = 212,886.76 : x
  2. Step 2: Convert to fraction form
    493,369.51/740,349.50 = 212,886.76/x
  3. Step 3: Cross multiply
    493,369.51x = 740,349.50 × 212,886.76
  4. Step 4: Simplify right side
    493,369.51x = 157,610,602,088.66
  5. Step 5: Solve for x
    x = 157,610,602,088.66/493,369.51
  6. Step 6: Final answer
    x = 319,457.53

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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.