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Finding the Fourth Proportional to 369,683.36, 510,139.28 and 210,697.12

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Solution

The fourth proportional to 369,683.36, 510,139.28 and 210,697.12 is: 290,748.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,683.36 : 510,139.28 = 210,697.12 : x
  2. Step 2: Convert to fraction form
    369,683.36/510,139.28 = 210,697.12/x
  3. Step 3: Cross multiply
    369,683.36x = 510,139.28 × 210,697.12
  4. Step 4: Simplify right side
    369,683.36x = 107,484,877,094.87
  5. Step 5: Solve for x
    x = 107,484,877,094.87/369,683.36
  6. Step 6: Final answer
    x = 290,748.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.