Home / 388,068.46-535,533.63-218,302.59

Finding the Fourth Proportional to 388,068.46, 535,533.63 and 218,302.59

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Solution

The fourth proportional to 388,068.46, 535,533.63 and 218,302.59 is: 301,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,068.46 : 535,533.63 = 218,302.59 : x
  2. Step 2: Convert to fraction form
    388,068.46/535,533.63 = 218,302.59/x
  3. Step 3: Cross multiply
    388,068.46x = 535,533.63 × 218,302.59
  4. Step 4: Simplify right side
    388,068.46x = 116,908,376,329.19
  5. Step 5: Solve for x
    x = 116,908,376,329.19/388,068.46
  6. Step 6: Final answer
    x = 301,257.09

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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.